So I was having sex with my girlfriend at her parent's house and we were really getting it on with her moaning and groaning which woke up her dad. We were really in the heat of it so we never noticed when he walked upstairs and then walked in on us.

"Dad!" my girlfriend exclaimed in a panic "I...I'm sorry"

The dad being, a dad, replies "Hi sorry, I'm Dad!"

He then turns to me and asks "Are you fucking sorry?"